CN204728265U - A kind of baffle formula debris flow drainage groove - Google Patents
A kind of baffle formula debris flow drainage groove Download PDFInfo
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- CN204728265U CN204728265U CN201520424005.7U CN201520424005U CN204728265U CN 204728265 U CN204728265 U CN 204728265U CN 201520424005 U CN201520424005 U CN 201520424005U CN 204728265 U CN204728265 U CN 204728265U
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Abstract
The utility model relates to a kind of baffle formula debris flow drainage groove.Comprise inducer, breeze way, row's section of leading and outlet section; Inducer builds import base plate by full lining and two ends side wall is formed, and import base plate end is connected to the upper end notched sill of breeze way; Breeze way comprises at least one the deep trouth section be connected with row's section of leading and baffle plate section, deep trouth section comprises upper end notched sill, lower end notched sill, cable wire net cage body river bottom protection, cable wire net cage body cushion coat and block stone, lower end notched sill is connected to row and leads base plate, baffle plate section comprises full lining and builds baffle plate base plate and tooth bank, and baffle plate section is positioned at deep trouth section overhead and is connected to both sides side wall; Described row's section of leading leads base plate by full lining block row and two ends side wall is formed, and it is equal with breeze way quantity that row leads hop count amount, and final stage row leads base plate and is connected to outlet base plate; Described outlet section comprises full lining and builds outlet base plate and two ends side wall.The utility model makes full use of baffle plate and tooth bank consumes mud-rock flow major part motion energy, makes drainage groove can reach the effect of control speed, energy dissipating in shorter length.
Description
Technical field
The utility model relates to a kind of debris flow drainage groove, particularly relates to a kind of baffle formula debris flow drainage groove.
Background technology
China is one of multiple country of global geological disaster, Disasters Type has a very wide distribution more, mud-rock flow is one of topmost geologic hazard type in China mountain area, along with the development of mountain area economy, ecological environments of the mountain area suffers violent destruction, vegetation quantity falls sharply, severe water and soil erosion, especially a large amount of callapsed landslide of bringing out of 5.12 Wenchuan earthquakes and Rock And Soil loosen, for debris flow formation provides good thing source condition, more be conducive to the outburst of mud-rock flow, the security of the lives and property of serious threat disaster area broad masses of the people, the sustainable development of restriction mountain area economy, therefore effectively must protect it.
Engineering structures is simple, prevention effect good owing to having for drainage groove, gather materials on the spot, construct and the feature such as easy to maintenance, life cycle length, cost province, be prevent and treat one of the most widely used engineering measure in mud-stone flow disaster at present, especially preferentially adopted in the mud-rock flow regulations such as highway, railway, cities and towns, mine.Drainage groove majority build mud-rock flow in deposition fan or constructional terrace on, groove wide, dark less, length is longer, and require in use to drain mud-rock flow in groove unobstructedly, do not occur or few alluvial phenomenon occurs, cell body should have good anti-collision and erosion resistant ability simultaneously.Drainage groove can be used alone or store engineering with hurdle in integrated control and is combined; Particularly when orographic condition is favourable to excretion, once debris flow drainage can be exempted disaster to predetermined area.
Current application more widely drainage groove mainly contains two classes: one is that full lining builds groove; Two is soft base energy dissipation type groove.The Typical Representative that full lining builds groove is V-type groove, is suitable for the less situation of longitudinal gradient, and its slurry end and speed stream horizontal wall inscription can strengthen flow velocity, improve discharge capacity.Soft base energy dissipation type groove and Dongchuan groove, the larger situation of applicable longitudinal gradient, it can reduce flow velocity, alleviate abrasion, extends the engineering life-span.Recent Chen Xiao waits clearly and proposes casing lining cutting formula debris flow drainage groove (ZL201110380681.5) and ladder-deep groove structure type debris flow drainage groove (CN201410001807) successively again, and the two is all applicable to being applicable to the larger situation of ditch bed longitudinal river slope.Above-mentioned drainage groove can in the object to a certain degree arriving energy dissipating, excretion, but all there is a same problem, when ditch bed longitudinal river slope is very large, the size of drainage groove needs to design to obtain the very long effect that just can reach energy dissipating, control speed, makes operating expenses and later maintenance expense become very expensive; And above-mentioned drainage groove designs according to personal experience mostly, do not calculate according to rational mechanics parameter, the hydraulics of therefore designed drainage groove fails to reach best.
Utility model content
For existing debris flow drainage groove Problems existing, the utility model proposes a kind of baffle formula debris flow drainage groove that can reach energy dissipating, control speed in short distance.
For achieving the above object, the technical solution of the utility model is:
The utility model proposes a kind of baffle formula debris flow drainage groove, described drainage groove comprises the full lining block outlet section that the full lining importing mud-rock flow fluid is built inducer, regulated and controled the breeze way of mud-rock flow fluid velocity and energy, drains the full lining block row section of leading of mud-rock flow fluid, derives mud-rock flow fluid; Described inducer builds import base plate 1 by full lining and two ends side wall 11 is formed, and import base plate end is connected to the upper end notched sill 2 of breeze way; Described breeze way comprises at least one the deep trouth section be connected with row's section of leading and baffle plate section, described deep trouth section comprise upper end notched sill 2, lower end notched sill 7, cable wire net cage body river bottom protection 4, to be positioned at above cable wire net cage body river bottom protection and be close to lower end notched sill cable wire net cage body cushion coat 6 and by cable wire net cage body river bottom protection and cable wire net cage body cushion coat the block stone 5 that wraps up, the row of lower end notched sill 7 row of the being connected to section of leading leads base plate 8, described baffle plate section comprises full lining and builds baffle plate base plate 3, and described baffle plate section is positioned at deep trouth section overhead and is connected to both sides side wall; Described row's section of leading leads base plate 8 by full lining block row and two ends side wall 11 is formed, and it is equal with breeze way quantity that row leads hop count amount, and final stage row leads base plate 8 and is connected to outlet base plate 9; Described outlet section comprises full lining and builds outlet base plate 9 and two ends side wall 11.
Further, described baffle plate section also comprises the baffle plate tooth bank 10 being positioned at baffle plate base plate 3 end.
Full tunnel floor plate is generally stone masonry structure or concrete structure or reinforced concrete structure.
Described drainage groove section is trapezoidal.
The size of described drainage groove can be optimized as follows:
According to physical and mechanical parameter design debris flow drainage groove optimum hydraulic section, method step is as follows:
M is drainage groove section factor coefficient, and M is less, and excretion debris flow and landslips is larger, and namely hydraulics is better.
M in formula
tfor the horizontal wall inscription coefficient of trapezoidal drainage groove bottom land.Get during design
now hydraulics reaches best.
The span of drainage groove slot bottom width b is
best value
q is debris flow and landslips; The drainage groove degree of depth
m
tfor the horizontal wall inscription coefficient of trapezoidal drainage groove bottom land.Side wall buried depth is 0.5-1.0m, and when mud-rock flow unit weight is larger, above-mentioned numerical value gets higher value, otherwise gets the small value.
For controlled investment, shorten construction period, entrance length L
0with exit length L
5general control is at 2.0-5.0m.Row leads segment length L
1main according to the average longitudinal river slope i of ditch bed
0build baseboard material with full lining to plan, generally get 6.0-24.0m, average longitudinal river slope i
0be taken as 0.2-0.5; As the average longitudinal river slope i of ditch bed
0when comparatively large, full lining block baseboard material abrasion resistance is less, row leads segment length L
1get the small value; As the average longitudinal river slope i of ditch bed
0when less, full lining block baseboard material abrasion resistance is larger, row leads segment length L
1take large values.I falls in row's section of leading ratio
1the abrasion resistance of building baseboard material according to full lining is determined, generally gets 0.08-0.15, when abrasion resistance is large, and i
1take large values, otherwise get the small value.
Deep trouth section sole length L
4the row of being set as leads segment length L
11/3rd; Deep trouth section sole length L
4equal with cable wire net cage body river bottom protection length, all equal block stone laying length L
2with cable wire net cage body buffer layer thickness L
3sum.Block stone laying length L
2with cable wire net cage body buffer layer thickness L
3mainly plan according to mud-rock flow fluid unit weight, general L
2get 2.0-4.0m, L
3get 0.5-1.0m; When debris flow body unit weight is larger, L
2, L
3take large values; When debris flow body unit weight is less, L
2, L
3get the small value.Upper end notched sill height h
1equal upper end notched sill flying height h
11, block stone laying depth h
12, cable wire net cage body river bottom protection thickness h
13and upper end notched sill buried depth height h
14sum.Upper end notched sill flying height h
11be generally and be less than or equal to 3m; Block stone laying depth h
12, cable wire net cage body river bottom protection thickness h
13, the rope diameter of cable wire net cage body river bottom protection and cable wire net cage body cushion coat and cable wire net mesh size mainly plan according to mud-rock flow fluid unit weight, usual h
12get 1.0-5.0m, h
13get 1.0-2.0m, rope diameter is generally 0.005-0.01m, and cable wire net mesh size is generally 0.1m × 0.1m-0.2m × 0.2m, and when debris flow body unit weight is larger, above parameter takes large values, and when debris flow body unit weight is less, above parameter gets the small value.Lower end notched sill height h
2equal block stone laying depth h
12, cable wire net cage body river bottom protection thickness h
13with lower end notched sill buried depth height sum; Cable wire net cage body cushion coat height and block stone laying depth h
12equal.In deep trouth, block stone size controlling is being less than or equal to 0.2m.Upper end notched sill buried depth height h
14be generally 0.5-1.0m, plan according to mud-rock flow fluid unit weight, when debris flow body unit weight is larger, take large values, when debris flow body unit weight is less, get the small value.The buried depth height of upper end notched sill 2 is equal with the buried depth height of lower end notched sill 7.
The width of baffle plate base plate 3 is equal with drainage groove slot bottom width; The thickness of baffle plate base plate is mainly planned according to mud-rock flow fluid unit weight, is generally taken as 0.3-0.5m, and when mud-rock flow fluid unit weight is larger, above-mentioned numerical value gets higher value simultaneously, otherwise gets the small value; Baffle plate plate top surface flushes with two ends side wall, the bottom surface of baffle plate base plate lower than upper end notched sill, higher than lower end notched sill; Baffle plate is arranged near notched sill side, upper end; Baffle plate tooth bank 10 length is equal with slot bottom width, and thickness is 0.1-0.2m, is highly 0.2-0.3m, and when mud-rock flow fluid unit weight is larger, above-mentioned numerical value gets higher value simultaneously, otherwise gets the small value.
It is as follows that the row of described drainage groove leads principle: after mud-rock flow enters drainage groove by inducer, and have a process slowly accelerated, this process is to import mud-rock flow fluid better, then, mud-rock flow fluid enters breeze way, the mud-rock flow fluid of high-speed cruising clashed into mutually with the baffle plate base plate be fixed on side wall before this, lose the motion energy of most of horizontal direction, mud-rock flow fluid major part after shock, along the vertical drop of baffle plate base plate, is clashed into mutually with the tooth bank of baffle plate lower end again, is lost the motion energy in sections transverse direction, after continuous horizontal and vertical direction toward impact, most of energy of mud-rock flow fluid is cancelled, then mud-rock flow fluid drops in deep trouth, mutually collide with the block stone in deep trouth section, and carry out the exchange of material and energy, this process mainly controls mud-rock flow and washes away bottom land and denude ladder section, also can consume mud-rock flow part kinetic energy simultaneously, interactional mud-rock flow and block stone extruding cable wire net cage body cushion coat, impact cable wire net cage body river bottom protection, cable wire net cage body cushion coat absorbs the impact energy of mud-rock flow, the impact force of the mud-rock flow fluid that can bear lower end notched sill plays cushioning effect, cable wire net cage body river bottom protection absorbs the impact energy of mud-rock flow, mud-rock flow fluid and bottom land foundation soil body is suppressed to exchange, particularly control foundation soil body and participate in debris flow, thus control mud-rock flow fluid washing away drainage groove bottom land, ensure that row leads function and normally plays, reduce later maintenance expense, mud-rock flow, after breeze way, enters the row's section of leading having certain longitudinal gradient than falling, and increases the ability of drainage groove conveying mud-rock flow, in this process, mud-rock flow fluid has a process obviously accelerated, and main purpose mud-rock flow fluid is arranged fast lead, and avoids occurring that cumulative bad deposits, mud-rock flow fluid is by after several bufferings-row's section of leading repeatedly acceleration-deceleration-acceleration, and debris flow velocity will become relatively very little, and the basic approach exhaustion of mud-rock flow energy, finally, is transported to the position of specifying smoothly by mud-rock flow by outlet section base plate.
Compared with prior art, the beneficial effects of the utility model are: make full use of baffle plate and tooth bank consumption mud-rock flow major part motion energy, make drainage groove can reach the effect of control speed, energy dissipating in shorter length, shorten the global design length of drainage groove, reduce operating expenses, deep trouth makes mud-rock flow and block stone interact and also can consume componental movement kinetic energy simultaneously, regulation and control debris flow velocity; And utilize cable wire net cage body to absorb the impact energy of mud-rock flow, suppress mud-rock flow and bottom land foundation soil body to exchange, thus control mud-rock flow washing away drainage groove bottom land, ensure that row leads function and normally plays, reduce later maintenance expense.
Accompanying drawing explanation
Fig. 1 is the lateral longitudinal generalized section of debris flow drainage groove;
Fig. 2 is the deep trouth section+baffle plate section cross sectional representation of debris flow drainage groove;
Fig. 3 is the deep trouth section+baffle plate section vertical section schematic diagram of debris flow drainage groove.
Figure notation in accompanying drawing is respectively:
1 import base plate 2 upper end notched sill
3 baffle plate base plate 4 cable wire net cage body river bottom protection
5 pieces of stone 6 cable wire net cage body cushion coats
7 lower end notched sill 8 rows lead base plate
9 outlet base plate 10 baffle plate tooth banks
11 side walls
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
Certain debris flow gully drainage area 1.8km
2, in order to control mud-stone flow disaster, planning to arrange on debris dam 1, deposition fan in the middle part of basin and building drainage groove 160m.In order to control the strong abrasion of mud-rock flow and souring, lowering operating expenses and maintenance cost simultaneously, adopting baffle formula debris flow drainage groove.Field investigation: the average longitudinal river slope i of subslot bed
0be 0.42, excretion debris flow and landslips 98m
3/ s, unit weight 21.8KN/m
3.According to debris flow drainage groove optimum section hydraulics, getting horizontal wall inscription coefficient is
Now M=6.93.
As shown in Figure 1, Figure 2, Figure 3 shows.Baffle formula debris flow drainage groove comprises inducer, breeze way, row's section of leading, outlet section.Described inducer comprises import base plate 1 and two ends side wall 11, and inducer end is connected to breeze way upper end notched sill 2; Described breeze way comprises deep trouth section and baffle plate section, deep trouth section comprise upper end notched sill 2, lower end notched sill 7, cable wire net cage body river bottom protection 4, cable wire net cage body cushion coat 6 and by cable wire net cage body river bottom protection and cable wire net cage body cushion coat the block stone 5 that wraps up, baffle plate section comprises baffle plate base plate 3 and is positioned at the baffle plate tooth bank 10 of baffle plate base plate 3 end, and baffle plate section is positioned at deep trouth section overhead and is connected to both sides side wall; Row's section of leading leads base plate 8 by full lining block row and two ends side wall 11 is formed; The upper end notched sill 2 of first deep trouth section is connected to import base plate 1, and lower end notched sill 7 is connected to first row and leads base plate 8, and the upper end notched sill 2 of second deep trouth section is connected to first row and leads base plate 8, and lower end notched sill 7 is connected to second row and leads base plate 8; Last row leads base plate 8 and is connected to outlet base plate 9; Breeze way and row's section of leading have 13 respectively; Outlet section comprises full lining and builds outlet base plate 9 and two ends side wall 11.
According to the actual conditions planning and designing drainage groove slot bottom width b in mud-rock flow region be 6.4m, drainage groove degree of depth h is 5.4m.
For controlled investment, shorten construction period, import base plate 1 length L
0with derivation section outlet base plate 9 length L
5get 3.0m.Row leads base plate 8 length L
1get 9.0m.Deep trouth section sole length L
4get 3.0m.According to mud-rock flow unit weight, determine block stone 5 laying length L
2get 2.0m, block stone 5 laying depth h
12get 4.0m, cable wire net cage body cushion coat 6 thickness L
3get 1.0m, cable wire net cage body cushion coat 6 highly for the particle diameter laying block stone 5 in 4.0m, deep trouth gets 0.2m; Full lining block row leads base plate 8 and adopts reinforced concrete structure, and i falls in row's section of leading ratio
1the abrasion resistance leading base plate 8 material according to full lining block row gets 0.15.Upper end notched sill flying height gets 2.0m.According to mud-rock flow unit weight determination cable wire net cage body river bottom protection 4 thickness h
13get 1.4m, the rope diameter of cable wire net cage body river bottom protection 4 and cable wire net cage body cushion coat 6 gets 0.01m, and cable wire net mesh size gets 0.2m × 0.2m; The buried depth height h of upper end notched sill 2 and lower end notched sill 7
14get 0.6m.Upper end notched sill 2 height h
1=8.0m, lower end notched sill 7 height h
2=6.0m.
The end face of baffle plate base plate 3 flushes with two ends side wall, and the width of baffle plate base plate gets 6.4m, and the thickness of baffle plate base plate gets 0.3m; The bottom surface of baffle plate base plate, lower than upper end notched sill 1.0m, higher than lower end notched sill 1.0m, is arranged on and is positioned at deep trouth section overhead, distance notched sill 1.0m place, upper end; Baffle plate tooth bank 10 height of baffle plate base plate end and thickness all get 0.2m, and the length of tooth bank 10 is 6.4m.
To sum up, the key parameter of baffle formula debris flow drainage groove is: the average longitudinal river slope i of subslot bed
0be 0.42, drainage groove slot bottom width b is 6.4m, drainage groove degree of depth h is 5.4m; Inducer base plate 1 length L
0with derivation section base plate 9 length L
5get 3.0m, row's section of leading base plate 8 length L
1get 9.0m, deep trouth section sole length L
4get 3.0m, i falls in row's section of leading ratio
1be 0.15, upper end notched sill 2 height h
1for 8.0m, lower end notched sill 7 height h
2for 6.0m, buried depth height h
14get 0.6m; For deep trouth section, upper end notched sill flying height h
11for 2.0m, block stone 5 laying depth h
12for 4.0m, block stone 5 laying length L
2for 2.0m, block stone 5 particle diameter are 0.2m, cable wire net cage body cushion coat 6 thickness L
3for 1.0m, cable wire net cage body cushion coat 6 are highly 4.0m, cable wire net cage body river bottom protection 4 thickness h
13for 1.4m, cable wire net cage body river bottom protection 4 length are 3.0m, the rope diameter of cable wire net cage body river bottom protection 4 and cable wire net cage body cushion coat 6 is 0.01m, and cable wire net mesh size is 0.2m × 0.2m; For baffle plate section, baffle plate base plate 3 width is 6.4m, and thickness is taken as 0.3m, and baffle plate tooth bank 10 height and thickness all get 0.2m, and the length of tooth bank 10 is 6.4m.
Claims (4)
1. a baffle formula debris flow drainage groove, it is characterized in that, comprise inducer, breeze way, row's section of leading and outlet section, described inducer builds import base plate (1) by full lining and two ends side wall (11) is formed, and import base plate end is connected to the upper end notched sill (2) of breeze way, described breeze way comprises at least one the deep trouth section be connected with row's section of leading and baffle plate section, described deep trouth section comprises upper end notched sill (2), lower end notched sill (7), cable wire net cage body river bottom protection (4), to be positioned at above cable wire net cage body river bottom protection and be close to lower end notched sill cable wire net cage body cushion coat (6) and by cable wire net cage body river bottom protection and cable wire net cage body cushion coat the block stone (5) that wraps up, lower end notched sill (7) row of being connected to leads base plate (8), described baffle plate section comprises full lining and builds baffle plate base plate (3), described baffle plate section is positioned at deep trouth section overhead and is connected to both sides side wall, described row's section of leading leads base plate (8) by full lining block row and two ends side wall (11) is formed, and it is equal with breeze way quantity that row leads hop count amount, and final stage row leads base plate (8) and is connected to outlet base plate (9), described outlet section comprises full lining and builds outlet base plate (9) and two ends side wall (11).
2. a kind of baffle formula debris flow drainage groove as claimed in claim 1, is characterized in that, described baffle plate section also comprises the baffle plate tooth bank (10) being positioned at baffle plate base plate (3) end.
3. a kind of baffle formula debris flow drainage groove as claimed in claim 2, is characterized in that, the width of described baffle plate base plate (3) is equal with drainage groove slot bottom width.
4. a kind of baffle formula debris flow drainage groove as claimed in claim 2 or claim 3, is characterized in that, described baffle plate tooth bank (10) length is equal with drainage groove slot bottom width.
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| CN201520424005.7U CN204728265U (en) | 2015-06-18 | 2015-06-18 | A kind of baffle formula debris flow drainage groove |
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|---|---|---|---|
| CN201520424005.7U CN204728265U (en) | 2015-06-18 | 2015-06-18 | A kind of baffle formula debris flow drainage groove |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU179356U1 (en) * | 2018-01-10 | 2018-05-11 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кабардино-Балкарский государственный аграрный университет им. В.М. Кокова" (ФГБОУ ВО Кабардино-Балкарский ГАУ) | ONE-STAGE DIFFERENCE OF FLEXIBLE DESIGN |
| RU2685401C1 (en) * | 2018-06-26 | 2019-04-17 | Федеральное государственное бюджетное образовательное учреждение высшего образования Кабардино-Балкарский государственный аграрный университет им. В.М. Кокова (ФГБОУ ВО Кабардино-Балкарский ГАУ) | Two-stepped difference combined construction |
| CN112343011A (en) * | 2020-10-30 | 2021-02-09 | 中国电建集团成都勘测设计研究院有限公司 | Debris flow drainage structure |
-
2015
- 2015-06-18 CN CN201520424005.7U patent/CN204728265U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU179356U1 (en) * | 2018-01-10 | 2018-05-11 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кабардино-Балкарский государственный аграрный университет им. В.М. Кокова" (ФГБОУ ВО Кабардино-Балкарский ГАУ) | ONE-STAGE DIFFERENCE OF FLEXIBLE DESIGN |
| RU2685401C1 (en) * | 2018-06-26 | 2019-04-17 | Федеральное государственное бюджетное образовательное учреждение высшего образования Кабардино-Балкарский государственный аграрный университет им. В.М. Кокова (ФГБОУ ВО Кабардино-Балкарский ГАУ) | Two-stepped difference combined construction |
| CN112343011A (en) * | 2020-10-30 | 2021-02-09 | 中国电建集团成都勘测设计研究院有限公司 | Debris flow drainage structure |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20170618 |
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| CF01 | Termination of patent right due to non-payment of annual fee |